ASB ALN2045M3 Internally matched lna module Datasheet

plerowTM ALN2045M3
Internally Matched LNA Module
Features
Description
· S21 = 36.4 dB @ 1920 MHz
= 35.6 dB @ 2170 MHz
· NF of 0.7 dB over Frequency
· Unconditionally Stable
· Single 5V Supply
· High OIP3 @ Low Current
The plerowTM ALN-series is the compactly designed surface-mount
module for the use of the LNA with or without the following gain blocks in
the infrastructure equipment of the mobile wireless (CDMA, GSM, PCS,
PHS, WCDMA, DMB, WLAN, WiBro, WiMAX), GPS, satellite communication terminals, CATV and so on. It has an exceptional performance of
low noise figure, high gain, high OIP3, and low bias current. The stability
factor is always kept more than unity over the application band in order
to ensure its unconditionally stable implementation to the application
system environment. The surface-mount module package including the
completed matching circuit and other components necessary just in case
allows very simple and convenient implementation onto the system
board in mass production level.
Specifications (in Production)
Typ. @ T = 25°C, Vs = 5 V, Freq. = 2045 MHz, Zo.sys = 50 ohm
Parameter
Frequency Range
Unit
Min
MHz
1920
Gain
dB
35
Gain Flatness
dB
Noise Figure (NF)
Output IP3
S11 / S22
(1)
dB
dBm
(2)
3-stage Single Type
Specifications
43
Typ
Max
2170
36
± 0.4
± 0.5
0.70
0.75
More Information
Website: www.asb.co.kr
E-mail: [email protected]
44
DB
Tel: (82) 42-528-7223
Fax: (82) 42-528-7222
-18 / -10
Output P1dB
dBm
28
29
Switching Time
µsec
-
Supply Current
mA
400
Supply Voltage
V
5
Impedance
Ω
50
ASB Inc., 4th Fl. Venture Town
Bldg., 367-17 Goijeong-Dong,
Seo-Gu, Daejon 302-716, Korea
430
Max. RF Input Power
dBm
C.W 29 ~ 31 (before fail)
Package Type & Size
mm
Surface Mount Type, 25Wx13Lx3.8H
Operating temperature is -40°C to +85°C.
1) OIP3 is measured with two tones at an output power of +12 dBm / tone separated by 1 MHz.
2) S11/S22 (max) is the worst value within the frequency band.
3) Switching time means the time that takes for output power to get stabilized to its final level after switching DC voltage from 0 V to Vs.
Outline Drawing (Unit: mm)
plerow
ALN2045M3
(Top View)
Pin Number
Function
3
RF In
8
RF Out
10
Vs
Others
Ground
(Bottom View)
Note: 1. The number and size of ground via holes in
a circuit board is critical for thermal RF
grounding considerations.
2. We recommend that the ground via holes be
placed on the bottom of all ground pins for
better RF and thermal performance, as
shown in the drawing at the left side.
Solder Stencil Area
(Side View)
Ø0.4 plated thru holes to ground plane
1/3
(Recommended Footprint)
www.asb.co.kr
March 2009
plerowTM ALN2045M3
Internally Matched LNA Module
S-parameters
Typical Performance
(Measured)
1920~2170
+5 V
Stability Factor (K)
Noise Figure
OIP3
2/3
P1dB
www.asb.co.kr
March 2009
plerowTM ALN2045M3
Internally Matched LNA Module
Application Circuit
VS
+
-
Tantal or MLC (Multi Layer Ceramic)
Capacitor
C1
C2
ALN
IN
OUT
1)
The tantal or MLC (Multi Layer Ceramic) capacitor is optional and for bypassing the AC noise introduced
from the DC supply. The capacitance value may be determined by customer’s DC supply status. The capacitor should be placed as close as possible to Vs pin and be connected directly to the ground plane for
the best electrical performance.
2)
DC blocking capacitors are always necessarily placed at the input and output port for allowing only the
RF signal to pass and blocking the DC component in the signal. The DC blocking capacitors are included inside the ALN module. Therefore, C1 & C2 capacitors may not be necessary, but can be added
just in case that the customer wants. The value of C1 & C2 is determined by considering the application
frequency.
Evaluation Board Layout
Recommended Soldering Reflow Process
Vs
20~40 sec
260°C
Ramp-up
(3˚C/sec)
200°C
Ramp-down
(6°C/sec)
OUT
IN
150°C
60~180 sec
3/3
Size 40x40mm
(for ALN-M3 Series – 25x13mm)
www.asb.co.kr
March 2009
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